683827 has 4 divisors (see below), whose sum is σ = 685800. Its totient is φ = 681856.

The previous prime is 683821. The next prime is 683831. The reversal of 683827 is 728386.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 728386 = 2 ⋅364193.

It is a cyclic number.

It is not a de Polignac number, because 683827 - 2³ = 683819 is a prime.

It is a Duffinian number.

683827 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 683792 and 683801.

It is not an unprimeable number, because it can be changed into a prime (683821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313 + ... + 1210.

It is an arithmetic number, because the mean of its divisors is an integer number (171450).

2⁶⁸³⁸²⁷ is an apocalyptic number.

683827 is a deficient number, since it is larger than the sum of its proper divisors (1973).

683827 is a wasteful number, since it uses less digits than its factorization.

683827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972.

The product of its digits is 16128, while the sum is 34.

The square root of 683827 is about 826.9383290186. The cubic root of 683827 is about 88.1012522567.

The spelling of 683827 in words is "six hundred eighty-three thousand, eight hundred twenty-seven".